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erastova [34]
3 years ago
14

Simplify - 12 – 81 – 9 5.12 - 451

Mathematics
2 answers:
vlabodo [156]3 years ago
6 0

Answer:

-615.12

Step-by-step explanation:

hope this helps

plz mark as brainliest!!

sergiy2304 [10]3 years ago
3 0
Answer: -615.12
Can check using a calculator
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Please help me due tomorrow morning
Genrish500 [490]

Answer: Y=-5

Step-by-step explanation:

The reason is because if you look down the y axis from the origin you can see the location where the line crosses over the y axis in this case it was at (0,-5)

8 0
3 years ago
Find the value of x that will make a||b help ?
nydimaria [60]

Answer:

x=30

Step-by-step explanation:

Find the value of x that will make A and B parallel

For A & B to be parallel, the interior angles must be supplementary, i.e.

4x+2x = 180

6x=180

x=30

When x=30, the interior angles are 120 and 60 which are supplementary.

4 0
4 years ago
Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t
makkiz [27]

Answer:

Step-by-step explanation:

x + 2y + 3z = 12

z=\frac{12-x-2y}{3}

Volume = V=f(x,y) = xy(\frac{12-x-2y}{3} )

find partial derivatives using product rule

f_x =\frac{y}{3} (12-2x-2y)\\f_y = \frac{x}{3} (12-x-4y)

i.e.

Using maximum for partial derivatives, we equate first partial derivative to 0.

y=0 or x+y =6

x=0 or x+4y =12

Simplify to get y =2, x = 4

thus critical points are (4,2) (6,0) (0,3)

Of these D the II derivative test gives

D<0 only for (4,2)

Hence maximum volume is when x=4, y=2, z= 4/3

Max volume is = 4(2)(4/3) = 32/3

6 0
3 years ago
The face of a clock has a circumference of 63 in what is the area of the face of the clock​
Rudik [331]
Answer: 5 ft 3 in I believe.
7 0
3 years ago
A solid cylinder of radius 7cm is 10cm long.find it's total surface area
Anton [14]

Answer:

C.  238π  cm^3.

Step-by-step explanation:

Surface area = 2 * area of the circular ends + area of the curved length

= 2π r^2 + 2π r* l

= 2 π 7^2 + 2π 7 * 10

= 98π + 140π

= 238π  cm^3.

7 0
3 years ago
Read 2 more answers
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